I suggest you get professional help to learn how to detach a little. Yes, we are meant to feel others’ pain, but you are taking it to an unhealthy extreme. There is a shvil hazahav, and you are not on it. On one side of the continuum, is total apathy to pain. On the other side of the continuum, is intense grief at every tragedy, to the point of feeling the need to ‘sit shiva’ and receive comfort from others. Both are not healthy.
There is a reason why shiva is required only for family members when someone passes away, and not the whole klal Yisroel, even though we are all considered acheinu.
(That is, if you are saying all this tongue in cheek.)